mirror of
https://github.com/huggingface/candle.git
synced 2025-06-15 02:16:37 +00:00
Make the RNN configs accessible from the models. (#2541)
This commit is contained in:
@ -1,4 +1,3 @@
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#![allow(unused)]
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use anyhow::{Context, Result};
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use std::sync::{Arc, Mutex};
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@ -1,4 +1,3 @@
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#![allow(unused)]
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use anyhow::{Context, Result};
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use std::sync::{Arc, Mutex};
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@ -116,7 +116,7 @@ impl LSTMConfig {
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/// A Long Short-Term Memory (LSTM) layer.
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///
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/// <https://en.wikipedia.org/wiki/Long_short-term_memory>
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#[allow(clippy::upper_case_acronyms, unused)]
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#[allow(clippy::upper_case_acronyms)]
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#[derive(Clone, Debug)]
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pub struct LSTM {
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w_ih: Tensor,
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@ -129,6 +129,62 @@ pub struct LSTM {
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dtype: DType,
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}
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impl LSTM {
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/// Creates a LSTM layer.
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pub fn new(
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in_dim: usize,
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hidden_dim: usize,
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config: LSTMConfig,
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vb: crate::VarBuilder,
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) -> Result<Self> {
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let layer_idx = config.layer_idx;
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let direction_str = match config.direction {
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Direction::Forward => "",
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Direction::Backward => "_reverse",
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};
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let w_ih = vb.get_with_hints(
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(4 * hidden_dim, in_dim),
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&format!("weight_ih_l{layer_idx}{direction_str}"), // Only a single layer is supported.
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config.w_ih_init,
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)?;
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let w_hh = vb.get_with_hints(
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(4 * hidden_dim, hidden_dim),
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&format!("weight_hh_l{layer_idx}{direction_str}"), // Only a single layer is supported.
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config.w_hh_init,
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)?;
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let b_ih = match config.b_ih_init {
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Some(init) => Some(vb.get_with_hints(
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4 * hidden_dim,
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&format!("bias_ih_l{layer_idx}{direction_str}"),
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init,
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)?),
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None => None,
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};
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let b_hh = match config.b_hh_init {
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Some(init) => Some(vb.get_with_hints(
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4 * hidden_dim,
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&format!("bias_hh_l{layer_idx}{direction_str}"),
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init,
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)?),
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None => None,
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};
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Ok(Self {
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w_ih,
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w_hh,
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b_ih,
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b_hh,
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hidden_dim,
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config,
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device: vb.device().clone(),
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dtype: vb.dtype(),
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})
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}
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pub fn config(&self) -> &LSTMConfig {
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&self.config
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}
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}
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/// Creates a LSTM layer.
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pub fn lstm(
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in_dim: usize,
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@ -136,47 +192,7 @@ pub fn lstm(
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config: LSTMConfig,
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vb: crate::VarBuilder,
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) -> Result<LSTM> {
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let layer_idx = config.layer_idx;
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let direction_str = match config.direction {
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Direction::Forward => "",
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Direction::Backward => "_reverse",
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};
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let w_ih = vb.get_with_hints(
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(4 * hidden_dim, in_dim),
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&format!("weight_ih_l{layer_idx}{direction_str}"), // Only a single layer is supported.
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config.w_ih_init,
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)?;
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let w_hh = vb.get_with_hints(
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(4 * hidden_dim, hidden_dim),
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&format!("weight_hh_l{layer_idx}{direction_str}"), // Only a single layer is supported.
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config.w_hh_init,
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)?;
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let b_ih = match config.b_ih_init {
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Some(init) => Some(vb.get_with_hints(
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4 * hidden_dim,
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&format!("bias_ih_l{layer_idx}{direction_str}"),
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init,
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)?),
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None => None,
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};
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let b_hh = match config.b_hh_init {
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Some(init) => Some(vb.get_with_hints(
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4 * hidden_dim,
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&format!("bias_hh_l{layer_idx}{direction_str}"),
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init,
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)?),
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None => None,
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};
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Ok(LSTM {
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w_ih,
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w_hh,
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b_ih,
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b_hh,
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hidden_dim,
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config,
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device: vb.device().clone(),
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dtype: vb.dtype(),
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})
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LSTM::new(in_dim, hidden_dim, config, vb)
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}
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impl RNN for LSTM {
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@ -270,7 +286,7 @@ impl GRUConfig {
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/// A Gated Recurrent Unit (GRU) layer.
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///
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/// <https://en.wikipedia.org/wiki/Gated_recurrent_unit>
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#[allow(clippy::upper_case_acronyms, unused)]
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#[allow(clippy::upper_case_acronyms)]
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#[derive(Clone, Debug)]
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pub struct GRU {
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w_ih: Tensor,
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@ -283,41 +299,56 @@ pub struct GRU {
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dtype: DType,
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}
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/// Creates a GRU layer.
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impl GRU {
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/// Creates a GRU layer.
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pub fn new(
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in_dim: usize,
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hidden_dim: usize,
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config: GRUConfig,
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vb: crate::VarBuilder,
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) -> Result<Self> {
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let w_ih = vb.get_with_hints(
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(3 * hidden_dim, in_dim),
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"weight_ih_l0", // Only a single layer is supported.
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config.w_ih_init,
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)?;
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let w_hh = vb.get_with_hints(
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(3 * hidden_dim, hidden_dim),
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"weight_hh_l0", // Only a single layer is supported.
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config.w_hh_init,
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)?;
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let b_ih = match config.b_ih_init {
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Some(init) => Some(vb.get_with_hints(3 * hidden_dim, "bias_ih_l0", init)?),
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None => None,
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};
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let b_hh = match config.b_hh_init {
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Some(init) => Some(vb.get_with_hints(3 * hidden_dim, "bias_hh_l0", init)?),
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None => None,
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};
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Ok(Self {
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w_ih,
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w_hh,
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b_ih,
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b_hh,
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hidden_dim,
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config,
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device: vb.device().clone(),
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dtype: vb.dtype(),
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})
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}
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pub fn config(&self) -> &GRUConfig {
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&self.config
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}
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}
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pub fn gru(
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in_dim: usize,
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hidden_dim: usize,
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config: GRUConfig,
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vb: crate::VarBuilder,
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) -> Result<GRU> {
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let w_ih = vb.get_with_hints(
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(3 * hidden_dim, in_dim),
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"weight_ih_l0", // Only a single layer is supported.
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config.w_ih_init,
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)?;
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let w_hh = vb.get_with_hints(
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(3 * hidden_dim, hidden_dim),
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"weight_hh_l0", // Only a single layer is supported.
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config.w_hh_init,
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)?;
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let b_ih = match config.b_ih_init {
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Some(init) => Some(vb.get_with_hints(3 * hidden_dim, "bias_ih_l0", init)?),
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None => None,
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};
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let b_hh = match config.b_hh_init {
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Some(init) => Some(vb.get_with_hints(3 * hidden_dim, "bias_hh_l0", init)?),
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None => None,
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};
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Ok(GRU {
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w_ih,
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w_hh,
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b_ih,
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b_hh,
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hidden_dim,
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config,
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device: vb.device().clone(),
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dtype: vb.dtype(),
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})
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GRU::new(in_dim, hidden_dim, config, vb)
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}
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impl RNN for GRU {
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